baber/WOPTO huggingface dataset:
Patent DE-4036759-A1 (DE)
Inventor: VOGELSANG HORST
IPC: F16L17/035
Filed: 1990-11-17
Abstract: A pipe connector with a socket (1) and plug-in part (2), especially for plastic pipes. The socket (1) has an entry guide section (3), an end guide section (4) and an expansion (5, 6) which consists of a retaining groove (5) for a retaining ring (7) and of a sealing chamber (6) for a sealing lip (8) which is connected to the retaining ring (7), converges in the form of a funnel in the plugging-in direction in the non-coupled stage, and has an integrally formed closure lip (9) which is expanded conically with respect to the sealing lip (8) and, in the non-coupled state, rests on the inner wall of the sealing chamber (6). On its inside, the retaining ring (7) has a circumferential compression rib (10) which is provided with an oblique surface (11), at least towards the entry guide section (3), which continues as an oblique surface (12) as far as the edge of the retaining ring (7) on the insertion side. The retaining ring (7) has a circumferential compression relief groove (13) which is open on the side opposite the insertion side and extends as far as the cross-sectional region in which the compression rib (10) is also arranged. The region under the compression relief groove (13) is designed as an extension of the sealing lip (8) towards the compression rib (10). <IMAGE>
Patent DE-4039284-A1 (DE)
Title: Hair roller and capsule for perming hair - has tubular connections between rollers for even supply of fluids
Inventor: SEJA FRANK
IPC: A45D2/22
Filed: 1990-12-08
Abstract: The hair roller comprises a hollow winding body (1) whose cavity (8) is provided preferably at one end with a tubular connection (11) whereby the rollers can be connected by tubes so that the relevant permanent waving fluid flows in series through all the rollers. Apertures (9) are spread out over the circumference and length of the roller whereby longitudinal grooves (10) can be formed on the surface of the roller and connect up with the aperture. ADVANTAGE - Even concentration of the fluid throughout the rolled up hair.
Patent DE-4100412-A1 (DE)
Inventor: SCHILLING RAINER DIPL ING
IPC: B27B5/38
Filed: 1991-01-09
Abstract: In an electric rotary hand tool, especially a hand circular saw, with a drive spindle (13) driven by an electric motor (11) via a gear system (12), there is a spindle stop system (24) to stop the spindle (13) when the rotary tool (14) is to be changed having a grooved disc (25) fixed in rotation on the drive spindle (13) or the drive shaft (16) of the motor (11) with at least one engagement groove (26, 27) and an engagement pin (28) insertable in the engagement groove (26, 27) against a return spring (36). In order to engage automatically the spindle stop (24) when the tool is placed on a surface (15) on the tool casing (19) when the rotary tool is changed, an actuating slide (40) is fitted in the tool casing (10) so as to be axially movable and connected to the engagement pin (28) in such a way that, when the actuating slide (40) is moved axially to a position behind the surface (15), the engagement pin (28) is pushed into the engagement groove (26 or 27) of the grooved disc (26).
Patent DE-4100833-A1 (DE)
IPC: E04F13/08
Filed: 1991-01-14
Abstract: The welded supporting anchor (10) has an anchor web (11) which is weldable to an anchor plate (13), or substructure, firmly attached to the anchoring ground and is composed of flat material having an anchor head (14) which, in use, is remote from the anchoring ground, engages then into a vertical joint between adjacent wall facade-covering plates (15, 16) and is connected thereto. The anchor web (11) is resolved into a framework having flat-material strips, each of which forms a compression flange and a tension flange, said strips being connected to one another in an anchor head (14) as a node and being twisted into themselves in each case by approximately 90 DEG  with respect to the plane stretched out from the anchor head (14) and also being welded at their ends remote from the anchor head (14) to an anchor plate (13), or substructure, in horizontally extending weld seams. <IMAGE>
Patent DE-4101947-A1 (DE)
Title: Ejecting coins stock in payout arrangement or games machine - by applying electrical pulse of selected length to electromagnet of electromechanical payout arrangement
Inventor: FIEDLER ALEXANDER
IPC: G07D1/00
Filed: 1991-01-21
Abstract: A method of ejecting coins stuck in a stack involves applying at least a short electrical pulse to an electromagnet (1) in an electromechanical pay-out arrangement when a signal is produced (3) indicating that a coin (2) is stuck in the pay-out arrangement or channel (4). The duration of the pulse is selected so that no unobserved pay-out occurs but only one ejection of the coin stuck in the pay-out device or one shaking of the device is applied. USE/ADVANTAGE - Coins stuck in the pay-out device, preferably of a coin-operated games machine, are ejected with reduced mechanical loading on arrangement.
Patent DE-4103672-A1 (DE)
Inventor: LUNZ ERICH
IPC: F16C29/06
Filed: 1991-02-07
Abstract: The invention relates to a cage in the form of an endless belt for the roller planet shoe of a linear guide. The cage comprises two belt sections (15) arranged beside the rollers (8) and webs (16) connecting the two belt sections (15) between two successive rollers (8). A reinforcing insert (23) is embedded in the belt sections (15). The central axis (25) of the belt sections (15) and the neutral fibre (25) of the reinforcing insert (23) is guided on a curve (26a) in the transition region (28) and deflection region (27) so that the connecting line (24) between two successive rollers (8) forms a tangent to the neutral fibre (25) in the deflection regions (27). This provides a geometrically accurate adjustment of the webs (16) in relation of the rollers (8) in the deflection paths (5) and, via the cable on the one hand provides axial positional accuracy owing to the great tensile strength and on the other good deflection of the belt sections (15) in the deflection regions (27) with high alternate-bending strength and hence a long useful life.
Patent DE-4104434-A1 (DE)
Title: Prodn. of modified spinning soln. - by heating e.g. polyacrylonitrile soln. in e.g. di:methyl:formamide, injecting e.g. tetra:ethylene glycol, heating and mixing intensively
Inventor: KUENZEL EGON DR
IPC: D01F6/18
Filed: 1991-02-14
Abstract: Modified spinning solns. are produced which can be spun, pref. by the dry process, to make threads with high water absorption. In the process, a soln. is heated to between 100 and 150 deg.C in a pipeline and a high boiling pt. non-solvent heated to 100-150 deg.C is fed into it; the mixt. is then intensively blended together while being maintained at the high temp. Pref. solns. are 20 to 40 wt.% polyacrylonitrile with at least 85 wt.% acrylonitrile units in dimethylformamide or dimethylacetamide. A pref. non-solvent is tetraethylene glycol. ADVANTAGE - Solns. are free from swelling substances and spin well. In an example a 29.5% solution of an acrylonitrile polymer, from 93.5% acrylonitrile, 6% methyl acrylate and 0.5% comonomer containing sulphonate groups in dimethylformamide solvent flows through a pipeline and is heated to 135 deg.C. Tetraethylene glycol at 140 deg.C is injected into the centre of the pipeline in a fine jet. The mix passes through a tube and then into a static mixer tube where it is heated again. Further tetraethylene glycol at 140 deg.C is injected into the stream again and again the mix is passed through a static mixer at 130-140 deg.C before being cooled to 80-90 deg.C. The spun product could be run perfectly for 18 days with only 3 interruptiothe m
Patent DE-4108026-A1 (DE)
Inventor: BAYER RONALD DIPL ING
IPC: F16F9/46
Filed: 1991-03-13
Abstract: In order to obtain a "soft" characteristic required for ride comfort reasons or a special characteristic from a range of possible ones while at the same time rendering the shock absorber insensitive to faults in the electromagnetic control system in a twin-tube shock absorber for motor vehicles fitted with a damper piston and an electromagnetically actuatable one-way damper valve, the invention proposes that the damper valve (10) takes the form of a single or two-stage slide valve, the position of the slide being determined dependently upon the hydraulic pressure difference dropping above the damper valve (10), the volume flowing through the damper valve (10) and the control current of the electromagnetic actuator (45, 46, 47, 49, 50).
Patent DE-4110243-A1 (DE)
Title: Lever drive providing linear movement - has two guide levers coupled to crank via translation piece and crank rod
Inventor: FELKEL ACHIM
IPC: F16H21/32
Filed: 1991-03-28
Abstract: The transmission piece (13) is controlled by two guide levers (14,15) and is pivotably linked to two bearings (7,8) of the latter and fixed to the other two bearings (1,2) which are only rotatable. The transmission and translation piece is driven by a crank rod (12). The drive-off part (10) is basically linear and movable at a constant speed. A drive shaft bearing (4) can be provided in a fixed section. The bearings are pref. friction or roller types. The drive-off part can be a working cylinder or slide part of a lever-type closing drive. USE/ADVANTAGE - Can reversibly operate hydraulic cylinder linearly and at a high constant speed.
Patent DE-4110925-A1 (DE)
Inventor: REBHAN DIETER ING GRAD
IPC: B29C37/02
Filed: 1991-04-04
Abstract: The invention relates to a trimming device for a tyre trimming machine or the like with cutting or abrading tools. In order to be able to free extremely different profiles clearly from projecting parts and ridges with the aid of cutting or abrading tools, a device is proposed in the manner that the cutting or abrasion tools (3) are disposed on a bellows (2) which can be filled with a pressure medium, which in turn is connected with a holder (4) which keeps it in an inflated state in a suitable orientation with regard to the surface to be trimmed, the bellows having a feed line (6) with which pressure medium can be fed and removed, and the holder (4) with the bellows being coupled to a holding structure (5) with which it can be suitably advanced to the tyres  to be trimmed.
Patent DE-4117525-A1 (DE)
Title: Apparatus for production of dentures - carries printed image of teeth as they will finally appear
Inventor: WILLNER GERT
IPC: A61C19/10
Filed: 1991-05-29
Abstract: The apparatus for ensuring that the upper and lower dentures of a patient are correctly aligned consists of a base which supports a model of the lower jaw. Two vertical pillars which are attached to the base support a swinging arm which carries a model of the upper jaw. A strip of flexible material (24) is attached to the model of the upper and to the model of the lower jaw. Each strip carries a printed image of the teeth which are to be attached to each denture. The patient is thus able to select teeth which either copy the appearance of the original natural teeth or which may be shaped and coloured to the patient's choice. The patient is thus able to see how the dentures will appear before such dentures are actually produced. USE/ADVANTAGE - Production of dentures to suit patient's choice. The method is particularly applicable to patients who have lost all their natural teeth.
Patent DE-4118440-A1 (DE)
Title: Reliable, rapid determn. of lipase activity in foodstuffs. - by colorimetric assay based on hydrolysis of substrate
Inventor: MAIER URSULA
IPC: C12Q1/44
Filed: 1991-06-05
Abstract: Determn. is effected by (a) treating a sample of the foodstuff with an aq. buffer soln. (pH 5-10) contg. a nonionic detergent at 25-50 deg.C. for at least 30 min. to extract lipases; (b) opt. filtering the extract; (c) adding a lipase substrate and a colour indicator; (d) measuring the optical density at a wavelength depending on the indicator to obtd. a blank reading; (e) incubating the soln. at 25-50 deg.C. for at least 1 hr. to permit lipase-catalysed hydrolysis of the substrate; and (f) remeasuring the optical density. USE/ADVANTAGE - The process may be used to assess the storage stability of foodstuffs, e.g. herbs and spices, by measuring microbial lipase activity. The assay is faster, more reliable and less expensive to perform than fluorescence assays based on hydrolysis of methylumbelliferone
Patent DE-4120343-A1 (DE)
Title: Pick=up with redn. gear esp. for revolution counter - has two opto-electronic systems for separate counting of revolutions and measurement of angle of shaft rotation
Inventor: RIEGGER JOHANNES
IPC: H03M1/16
Filed: 1991-06-20
Abstract: The rotational angle and the number of revolutions performed by a drive shaft (14) are determined with the aid of two gear wheels (36, 39) which transmit the drive to pulse discs (35, 41). An electrically programmable read-only memory unit stores a limited number of possible signal values correlated to positions of the discs, which are associated with optical barriers pref. implementing a Gray code. With a gear ratio of 78:66 the discs may have 26 and 22 steps respectively. ADVANTAGE - Backlash is taken up by digital correction, relaxing tolerances to be imposed on mfr.
Patent DE-4122873-A1 (DE)
Inventor: OEHRY NORBERT
IPC: B25C1/18
Filed: 1991-07-11
Abstract: The powder-actuated fastening tool has an axially displaceable bolt guide (3) which is displaced in the opposite direction to the drive-in direction when the fastening tool is pressed against a component (10). In the process, the bolt guide (3) acts on a piston guide (2) which in turn tightens a firing bolt (9) via a tightening device (8). The firing bolt (9) serves to ignite propellant charges. At the side, the bolt guide (3) has a feed slot (3a) which is connected to a magazine (1a) arranged on the housing (1) of the fastening tool. Fasteners (11) which are arranged in the magazine (1a) and are connected to one another in a strap-like manner via guide bushes (12) are thereby fed to the bolt guide (3), the displacement of the bolt guide (3) resulting in only a single fastener (11) coming into the effective area of a driving piston (4) through the feed slot (3a) graduated in width. 
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Patent DE-4125931-A1 (DE)
Inventor: GERHARDT J DURCHMESSER RGEN
IPC: B29C59/00
Filed: 1991-08-05
Abstract: The invention relates to a process for making a cylindrical embossing tool for embossing a positive and/or negative relief onto at least one side of flat material, characterised in that in one exposure step a flat metal sheet - preferably having a thickness from 0.40 mm to 1.00 mm - is provided on one side with a photoresist layer and is exposed through a film - or an equivalent template - which is provided with a pattern corresponding to the relief, in that then, in a development step, the unexposed regions of the photoresist layer are removed, so that the - cured - exposed regions of the photoresist layer remain, in that the metal sheet is then bent around a roller in the form of a sleeve in such a way that its exposed - cured - regions point outwards, in that then the metal sheet bent in the form of a sleeve - preferably while still on the roller - is rotated about its axis and the regions of the metal sheet which are located between the exposed - cured - regions of the photoresist layer are etched out up to a predefined depth - of preferably from 0.20 mm to 0.60 mm - with an etching liquid, in that the exposed cured regions of the photoresist layer are then removed from the metal sheet bent in the form of a sleeve and placed around the roller or around another roller of equal diameter, in that the edges pointing towards one another of the metal sheet in the form of a sleeve whose etched side points outwards are joined to one another at least in some places to form a metal sleeve and in that the metal sleeve is then fastened on the roller or on another roller having the same diameter. 
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Patent DE-4127516-A1 (DE)
Title: Mixt. of N-alkyl:phthalimide
Inventor: BAUMANN HANS-PETER DR
IPC: D06P1/649
Filed: 1991-08-20
Abstract: Mixt. comprises N-(n-propyl)-phthalimide (3-14 wt.%), N-(sec-C4-6-alkyl)-phthalimide (8+70 wt.%) and N-(n-4-6Calkyl)-phthalimide (55-80wt.%) and an emulsifier. Emulsifier may be anionic or non-ionic emulsifier(s), such as that prepd. form a partially sulphated addn. prod. of ethyleneoxide and alkylphenol-formaldehyde condensn. prod. mixed with a non-sulphated starting material, or a lipophilic non-ionic emulsifying assistant. Also included may be an oil-soluble fatty acid-(1-4C alkyl)ester having 12-24 C atoms in the fatty acid radical. Anionic emulsifiers pref. include partially carboxymethylated, phosphated or sulphated polyalkyleneglycolethers of a hydrocarbon mono- or polyol having 10C atoms per OH gp., or a sulphate, phosphate or carboxymethylated deriv. of a sorbitan or glycerine fatty acid ester, where the fatty acid radical has 12-24C atoms, or of a polyalkylenemglycolether, or is a 12-24C hydrocarbon sulphonic acid. Non-ionic emulsifier is a polyalkyleneglycolether of a hydrocarbon-mono- or polyol contg.  10 or more C atoms per OH gp., or a sorbitan or glycerine fatty acid ester having 12-24C atoms in the fatty radical, or a polyalkyleneglycolether. Ratio of emulsifiers:phthalimide is 5-20 wt.%, and the ratio of emulsifier to oil-soluble fatty acid ester is 95-40 to 5-60. Compsn. is free of other phthalimides.
Patent DE-4127995-A1 (DE)
Title: Heat-damming cover for refrigerated shelves -  has shaft for roller blind connected to drive motor for movement in both opening and closing directions
Inventor: EMING WINFRIED DIPL ING
IPC: A47F3/04
Filed: 1991-08-23
Abstract: The stabilising rail (15) of the roller blind (9) is retained on pivot arms (16) under spring tension with links (17) between the blind shaft (11) and the front edges (8) of the goods floor. End switches of the mechanical, optical or magnetic type (10) for the roller blind (9) are incorporated, and the blind shaft (11) is fitted on support profiles formed as toothed rods for the engagement of gearwheels of a motor-driven drive unit. The intermediate space between the support profiles is closed over the total horizontal length of the refrigerated shelf unit (1). USE - To insulate refrigerated display shelves against heat.
Patent DE-4132542-A1 (DE)
Title: Magnetic tape transport for video cassette recorder - has gear dirves with linkages operating tape gudes allowing small space behind rotating head
Inventor: CHAE YOU SECK
IPC: G11B15/665
Filed: 1991-09-30
Abstract: A magnetic video tape cassette recorder has the tape pulled out of the cassette to be passed around part of the surface of a drum (9) that contains rotating heads. The tape passes around guide pins (8,10) that are supported on guides (6,11). The guides have pins that move in profiled guide tracks (27,29). When the cassette is laoded the guides are retracted. Once in position the guides extend along the tracks to draw the tape from the cassette spools (25,26). The drive motion is provided by gear pinions (30,31) and linkages. ADVANTAGE - Provides stable tape motion for reliable operation of compact VCR.
Patent DE-4140798-A1 (DE)
Title: car seat with squab support - has clip connections between squab carrier and seat frame
Inventor: DEEGENER ELMAR DIPL ING
IPC: B60N2/015
Filed: 1991-12-11
Abstract: The squab carrier has several connections to a seat frame. At least some of the connections are formed as clip connections. The front part of the carrier (1) is connected to the frame (2-6) via a clip connection (10,11) to be pivoted about an axis, which extends in transverse direction of the seat. The rear part is supported on the frame via spring elements (14). Each clip connection consists of a bar-shaped element (10), extending in transverse direction of the seat, and a clamp- shaped element (11), which surrounds it partly. USE/ADVANTAGE - For car seat,with simple mfr.and easy assembly.
Patent DE-4200532-A1 (DE)
Title: Luggage rack for a vehicle roof - makes use of a fastening claw to secure a releasable connection
Inventor: STOEVER CARSTEN DIPL ING
IPC: B60R9/058
Filed: 1992-01-11
Abstract: The luggage rack is for a vehicle roof, (5). It is provided with a step (6) with a rear section (7) which merges into a base surface (8). The luggage rack has a support (2) with a fastening claw (3a) in the form of a two-armed lever, with a screw connection (4) between the support and the upper lever arm (15) which presses the free end (17) of the lower lever arm (18) into the rear sections. USE/ADVANTAGE - Connection for attaching a releasable roof rack which is simple to assemble and avoids the danger of undue pressure damaging the roof skin.
Patent DE-4208155-A1 (DE)
Title: Light refractory ceramic material - has spherical pores formed by hollow sphere addn. to starting material
Inventor: FICKEL ALFRED DIPL ING
IPC: C04B38/08
Filed: 1992-03-13
Abstract: A light refractory ceramic material has more than 20% porosity, the porosity mainly comprising statistically distributed spherical pores. A refractory ceramic component of the above material is used as a firing ancillary. Light refractory ceramic material and components are also claimed, in which the material is prepd. from a raw material mixt. contg. 5 - 85% hollow mineral spheres. Also claimed are highly porous ceramic refractory materials as described above. USE/ADVANTAGE - The refractory ceramic materials are esp. useful for firing ancillaries in the fine ceramics industry. They have the requisite strength
Patent DE-4218208-A1 (DE)
Title: Sync. digital hierarchy signal handling in switch matrix - dividing main signal into constituents of lower multiplex planes for double interpolation into transfer signals
Inventor: BEHRENS MICHAEL DR
IPC: H04J3/16
Filed: 1992-06-03
Abstract: A main signal of tributary unit gp. 3 contg. signals of the TU-3 multiplex plane is inserted as a whole into the transfer signals, whereas one contg. signals of category TU-12 is distributed amongst these for duplication in the transfer signals. In an example for two 48:16 switch matrices, a D(sub 4)39x signal has particular byte positions reserved for particular portions of three TUG-3 signals by suitable and (if desired) variable programming. ADVANTAGE - Esp. signals of different multiplex planes and bit rates can be switched without blocking even when representing useful load of common signal of higher multiplex plane.
Patent DE-4220112-A1 (DE)
Inventor: BONEWITZ WILFRIED
IPC: E01B9/28
Filed: 1992-06-18
Abstract: A rail anchoring element has a fastening bolt (3) which extends through a plastic spring element (5) and is anchored in the soleplate (6), clamping the plastic element (5) between a rail foot (1) and a support on the soleplate (6). The spring element is designed as an elastic plate provided on its lower side with a downwardly projecting lug (26) which clamps the rail foot. The elastic plate should be made of thermoplastic polyurethane. The varying thickness of different sections of the elastic plate allows variable spring excursions and clamping forces to be set for a rail foot in relation to the reaction forces at the soleplate. The lug, if required combined with other components on the soleplate, secures the bracing construction against rotation and if required against transverse sliding.